Synthopia reports that: "Scientists at Keio University in Japan are pioneering new types of clothing, inspired by analog synthesis, that can change color to match various outfits. The hi-tech clothing is an example of current research into wearable computers.

A color-shifting "chameleon shawl", developed by Akira Wakita, incorporates red, blue and green light-emitting dioedes(LEDs). By varying the brightness of each type of diode, various colors can be created. A sensor in the garment lets it identify and match the color of the nearest item of clothing.

Other experimental clothing can react to the environment or respond to the touch. Below, a model demonstrates a wearable piano."

Grabbed from: http://synthtopia.com/news/05_12/clothing_analog_synthesis.html
Source: http://idl.sfc.keio.ac.jp/wearablesynthesis/wearablesynthesis.html